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artcher [175]
3 years ago
12

HERE ARE TWO NUMBER MACHINES A AND B

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

x=-7

Step-by-step explanation:

We can write them both like functions like this

A=5x-4

B=3x+8

Where

x=input

A=Output A

B=Output B

We want the output of A 3 times the output of B this can be written like this:

A=3B

we replace with the functions

5x-4=3(3x+8)

we solve for x

5x-4=9x+24\\5x-9x=24+4\\-4x=28\\x=\frac{28}{-4}\\x=-7

The output that makes the out put of A 3 times teh output of B is -7

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If Jorge walks 1 mile in 1 hour. In 2 hours at the same place, How many yards can Jorge walk now
julsineya [31]

Answer:

3520 yards

Step-by-step explanation:

1 mile in 1 hour.

In 2 hours he will cover 2×1= 2 miles

1 mile = 1760 yards

2 miles = 3520 yards

3 0
3 years ago
Read 2 more answers
What is the answer to 2×1/6=
Gennadij [26K]
2\times\frac{1}{6}=\frac{2}{6}=\frac{2\times1}{2\times3}=\frac{1}{3}
8 0
3 years ago
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Determine whether the data described in the tables is best modeled by a linear function or an exponential function.
Leviafan [203]

Answer:

Electric car = Exponential function (decreasing cost)

Gasoline car = Exponential function (increasing cost)

Step-by-step explanation:

The given data the Electric car, we have;

Time (years)   {}     Cost (thousands of dollars)

0                           {}      35

5                           {}      27

10                           {}     21

15                           {}     16

20                           {}    12.5

The difference between successive term is such that each term decreases by approximately the same percentage given as follows

1st and 2nd term (35 - 27)/35 × 100 ≈ 22.8571% decrease

2nd and 3rd term (27 - 21)/27 × 100 ≈ 22.222% decrease

3rd and 4th term (21 - 16)/21 × 100 ≈ 23.81% decrease

4th and 5th term (16 - 12.5)/16 × 100 ≈ 21.875% decrease

Therefore. the electric car is best approximated by exponential function

The given data the Gasoline car, we have;

Time (years)   {}     Cost (thousands of dollars)

0                           {}      35

5                           {}      40.2

10                           {}    46.3

15                           {}    53.2

20                           {}    61.2

The difference between successive term is such that each term increases by approximately the same percentage given as follows

1st and 2nd term (40.2 - 35)/35 × 100 ≈ 14.857% decrease

2nd and 3rd term (46.3 - 40.2)/40.2 × 100 ≈ 15.174% decrease

3rd and 4th term (53.2 - 46.3)/46.3× 100 ≈ 14.9% decrease

4th and 5th term (61.2 - 53.2)/53.2× 100 ≈ 15.03% decrease

Therefore. the Gasoline car is best approximated by exponential function

4 0
3 years ago
on a piece of paper graph the system of equations then determine which answer choice matches the graph you drew and identify the
grigory [225]

Answer:

the solution is (-2,3)

Step-by-step explanation:

a

7 0
3 years ago
In for this model<br> What would the equation be <br> Ex <br> X+3x=9+x
Natali [406]

Answer:

x=3

Step-by-step explanation:

4x-x=9

3x=9

x=3

5 0
3 years ago
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